gram atoms in 4.8 of sodium
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No. of atoms = no. of moles × avogadro no.
no. of moles = given mass/ mol. mass
= 4.8/23
no. of atoms = (4.8/23) × 6.022× 10²³
= 1.2 × 10²³
no. of moles = given mass/ mol. mass
= 4.8/23
no. of atoms = (4.8/23) × 6.022× 10²³
= 1.2 × 10²³
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